The proposed Bayou Bridge Pipeline is the target of a new lawsuit filed by several environmental groups and residents of the St. James community in St. James Parish.  They want to overturn the permit, granted by Louisiana Department of Natural Resources...The Department of Natural Resources issued a permit April 3, and denied requests for reconsideration on May 1 and May 16.  Other permits are pending from the state Department of Environmental Quality and the U.S. Army Corps of Engineers...A Department of Natural Resources spokesman said the agency thinks its permit decision complies with state law. He said responses to specific assertions in the suit would have to wait until the agency responded in court...State officials...did not take into account...the potential effects of spills on wetlands in areas where the pipeline crosses part of the Louisiana coastal zone, the suit said....[T]hey discounted the potential effects of a spill in Bayou Lafourche, a drinking water source for many Lafourche Parish residents...[T]he plaintiffs argue that state officials did not follow state Supreme Court rulings requiring that they consider alternative routes and transportation methods in determining whether the pipeline and its route represent the best environmental and economic alternative...